CN113818149A - Breathable soft non-woven fabric and preparation method thereof - Google Patents
Breathable soft non-woven fabric and preparation method thereof Download PDFInfo
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- CN113818149A CN113818149A CN202110997715.9A CN202110997715A CN113818149A CN 113818149 A CN113818149 A CN 113818149A CN 202110997715 A CN202110997715 A CN 202110997715A CN 113818149 A CN113818149 A CN 113818149A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4309—Polyvinyl alcohol
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
- D06H7/02—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials transversely
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
- D06H7/04—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials longitudinally
- D06H7/06—Removing selvedge edges
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/28—Cellulose esters or ethers, e.g. cellulose acetate
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/06—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to a breathable and soft non-woven fabric and a preparation method thereof, wherein the breathable and soft non-woven fabric is prepared by the following steps: s1, preparing raw materials including polypropylene, polyester fibers, cellulose acetate butyrate, maleic acid resin, modified polyvinyl alcohol, saturated erucamide and an antioxidant; s2, adding polypropylene, polyester fiber, cellulose acetate butyrate ester, maleic acid resin, modified polyvinyl alcohol and saturated erucic acid amide into a melting tank together, heating at high temperature until the materials are completely melted to obtain a melt, cooling the melt, adding an antioxidant, and stirring to obtain a mixture; s3, sending the mixture out from the spinning die head through cold air, cooling and solidifying to form non-woven fabric fibers, and cross lapping the non-woven fabric fibers after carding and combing to obtain a fiber web; and S4, drying at low temperature, sending the fiber web into an oven for drying, and putting the dried fiber web into an edge cutting device for edge cutting and rolling to obtain the breathable and soft non-woven fabric.
Description
Technical Field
The invention relates to the technical field of non-woven fabric preparation, in particular to a breathable and soft non-woven fabric and a preparation method thereof.
Background
The non-woven fabric is also called non-woven fabric, needle-punched cotton, needle-punched non-woven fabric and the like, is produced by adopting polyester fiber and polyester fiber materials and is manufactured by a needle-punching process, and can be made into different thicknesses, hand feeling, hardness and the like. The non-woven fabric has the characteristics of moisture resistance, air permeability, flexibility, light weight, flame retardance, no toxicity, no odor, low price, recycling and the like. The product can be used in different industries, such as sound insulation, heat insulation, electric heating sheet, mask, clothing, medical use, filling material, etc.
The existing non-woven fabric is poor in air permeability, so that the user experience is poor, the toughness of the non-woven fabric is low, and the quality is poor. In the process of production non-woven fabrics, often use the side cut device, current side cut device application scope is lower, and the motion range of cutting knife is limited, lacks the subsequent collection to the non-woven fabrics after the cutting simultaneously.
In order to solve the above-mentioned drawbacks, a technical solution is now provided.
Disclosure of Invention
The invention aims to provide a breathable and soft non-woven fabric and a preparation method thereof.
The technical problems to be solved by the invention are as follows:
the existing non-woven fabric is poor in air permeability, so that the user experience is poor, the toughness of the non-woven fabric is low, and the quality is poor. In the process of production non-woven fabrics, often use the side cut device, current side cut device application scope is lower, and the motion range of cutting knife is limited, lacks the subsequent collection to the non-woven fabrics after the cutting simultaneously.
The purpose of the invention can be realized by the following technical scheme:
a breathable and soft nonwoven fabric, which is prepared by the following steps:
s1, preparing raw materials including polypropylene, polyester fibers, cellulose acetate butyrate, maleic acid resin, modified polyvinyl alcohol, saturated erucamide and an antioxidant;
s2, adding polypropylene, polyester fiber, cellulose acetate butyrate ester, maleic acid resin, modified polyvinyl alcohol and saturated erucic acid amide into a melting tank together, heating at high temperature until the materials are completely melted to obtain a melt, cooling the melt, adding an antioxidant, and stirring to obtain a mixture;
s3, sending the mixture out from the spinning die head through cold air, cooling and solidifying to form non-woven fabric fibers, and cross lapping the non-woven fabric fibers after carding and combing to obtain a fiber web;
and S4, drying at low temperature, sending the fiber web into an oven for drying, and putting the dried fiber web into an edge cutting device for edge cutting and rolling to obtain the breathable and soft non-woven fabric.
Further, step S1 includes the following raw materials by weight: 40-50 parts of polypropylene, 12-15 parts of polyester fiber, 13-16 parts of cellulose acetate butyrate, 10-12 parts of maleic acid resin, 12-15 parts of modified polyvinyl alcohol, 2-3 parts of saturated erucamide and 1-2 parts of antioxidant.
Further, in step S2, the melt is cooled to 130-.
Further, the aperture of the spinning die in the step S3 is 0.4-0.8 mm.
Further, in the step S4, the oven temperature is 40-50 ℃, and the speed of the fiber web passing through the oven is 15-20 m/min.
Further, the preparation method of the modified polyvinyl alcohol comprises the following steps: adding cellulose nanocrystal, carboxymethyl cellulose and polyvinyl alcohol into a reaction kettle, stirring and reacting for 0.8-1h at 120 ℃, cooling to 80-85 ℃, adding neodecanoic acid glycidyl ester, continuing to stir and react for 0.4-0.6h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
Further, the mass ratio of the cellulose nanocrystal, the carboxymethyl cellulose, the polyvinyl alcohol, the glycidyl neodecanoate, the aminoethyl piperazine and the triethanolamine is 1-1.6:0.8-1.2: 8-10: 0.2-0.5: 0.1-0.2:0.1-0.3.
Further, the antioxidant is one or more of molybdenum dialkyl dithiocarbamate, tributyl phosphite and dialkyl diphenylamine which are mixed in any proportion.
Further, the working process of the edge cutting device is as follows:
firstly, one end of a fiber net penetrates through one end of the placing groove and is positioned in the cutting groove, a fourth telescopic cylinder is started, and the output end of the fourth telescopic cylinder is driven to push the clamping plate to clamp the two ends of the fiber net;
secondly, starting a third telescopic cylinder to drive a cutting motor to move to the position above the fiber web, and starting a second telescopic cylinder to drive a second sliding plate to slide on a second sliding rod to move to the position on the fiber web needing edge cutting;
and thirdly, starting a cutting motor to drive a cutting knife to rotate, simultaneously starting a first telescopic cylinder to drive a first sliding plate to slide on a first sliding rod, realizing feeding motion, performing edge cutting operation on the fiber web, enabling one end of the cut fiber web to penetrate through a winding groove and be fixed with the outer surface of a winding roller, and starting a winding motor to drive the winding roller on a winding rod to rotate to wind the fiber web.
A preparation method of the breathable and soft non-woven fabric comprises the following steps:
s1, preparing raw materials, including the following raw materials in parts by weight: 40-50 parts of polypropylene, 12-15 parts of polyester fiber, 13-16 parts of cellulose acetate butyrate, 10-12 parts of maleic acid resin, 12-15 parts of modified polyvinyl alcohol, 2-3 parts of saturated erucamide and 1-2 parts of antioxidant;
s2, adding polypropylene, polyester fiber, cellulose acetate butyrate ester, maleic acid resin, modified polyvinyl alcohol and saturated erucamide into a melting tank together, heating at high temperature until the mixture is completely melted to obtain a melt, cooling the melt to 130-150 ℃, preserving the heat, adding an antioxidant, and stirring at the rotating speed of 300r/min for 20-30min to obtain a mixture;
s3, sending the mixture out from a spinning die head with the aperture of 0.4-0.8mm through cold air, cooling and solidifying to form non-woven fabric fibers, and cross lapping the non-woven fabric fibers after carding and combing to obtain a fiber web;
and S4, drying at low temperature, namely, sending the fiber web into an oven for drying, wherein the temperature of the oven is 40-50 ℃, the speed of the fiber web passing through the oven is 15-20m/min, and after drying, putting the fiber web into an edge cutting device for edge cutting and rolling to obtain the breathable and soft non-woven fabric.
The invention has the beneficial effects that:
the polypropylene is adopted as the base material, and the processed non-woven fabric has higher waterproof performance and air permeability on the basis of ensuring the requirements of strength and toughness; meanwhile, the modified polyvinyl alcohol is used as the adhesive of the non-woven fabric, the adhesive is high in air permeability and adhesive property, and the air permeability and toughness of the non-woven fabric can be enhanced;
through setting up removal cutting mechanism, make the cutting knife homoenergetic realize removing wantonly in level and vertical direction to remove the optional position on the fibre net and cut edge the operation, improved the accommodation of device, the practicality is stronger. Promote first sliding plate through first telescopic cylinder and slide on first slide bar, realize the horizontal lateral shifting of cutting knife, promote the second sliding plate through second telescopic cylinder and slide on the second slide bar, realize the horizontal vertical removal of cutting knife, promote the fixed plate downstream through third telescopic cylinder, realize the ascending removal of the vertical side of cutting knife, drive the cutting knife through the cutting motor and rotate and cut edge the operation to the fibre web.
By arranging the clamping and winding mechanism, the fourth telescopic cylinder pushes the clamping plate to clamp the fiber web in the placing groove, so that the trimming operation is facilitated, and poor trimming precision caused by displacement of the fiber web in the trimming process is avoided; the winding roller on the winding rod is driven by the winding motor to wind the fiber web after trimming, so that the fiber web is convenient to store, and the practicability of the device is improved.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a flow chart of a process for preparing a breathable and soft nonwoven fabric according to the present invention;
FIG. 2 is a schematic view showing the overall construction of the edge slitting device according to the present invention;
FIG. 3 is a schematic view of the construction of the mobile cutting mechanism of the present invention;
FIG. 4 is an enlarged view of the invention at A in FIG. 3;
FIG. 5 is a schematic structural view of a clamping and winding mechanism of the present invention;
FIG. 6 is a schematic view of the internal structure of the clamping table of the present invention;
fig. 7 is a schematic view of the internal structure of the winding table of the present invention.
In the figure: 1. moving the cutting mechanism; 2. clamping the winding mechanism; 101. a first support plate; 102. a first slide bar; 103. a first sliding plate; 104. a second slide bar; 105. a second sliding plate; 106. a first telescopic cylinder; 107. a second telescopic cylinder; 108. a third telescopic cylinder; 109. a fixing plate; 110. cutting the motor; 111. a cutting knife; 112. a first support leg; 201. a work table; 202. a clamping table; 203. a placement groove; 204. cutting the groove; 205. a clamping plate; 206. a clamping spring; 207. a fourth telescopic cylinder; 208. a winding chamber; 209. a coiling groove; 210. a winding motor; 211. winding the rod; 212. a wind-up roll; 213. a second support leg.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A breathable and soft nonwoven fabric, which is prepared by the following steps:
s1, preparing raw materials including polypropylene, polyester fibers, cellulose acetate butyrate, maleic acid resin, modified polyvinyl alcohol, saturated erucamide and an antioxidant;
s2, adding polypropylene, polyester fiber, cellulose acetate butyrate ester, maleic acid resin, modified polyvinyl alcohol and saturated erucic acid amide into a melting tank together, heating at high temperature until the materials are completely melted to obtain a melt, cooling the melt, adding an antioxidant, and stirring to obtain a mixture;
s3, sending the mixture out from the spinning die head through cold air, cooling and solidifying to form non-woven fabric fibers, and cross lapping the non-woven fabric fibers after carding and combing to obtain a fiber web;
and S4, drying at low temperature, sending the fiber web into an oven for drying, and putting the dried fiber web into an edge cutting device for edge cutting and rolling to obtain the breathable and soft non-woven fabric.
Step S1 includes the following raw materials by weight: 40 parts of polypropylene, 12 parts of polyester fiber, 13 parts of cellulose acetate butyrate, 10 parts of maleic acid resin, 12 parts of modified polyvinyl alcohol, 2 parts of saturated erucamide and 1 part of antioxidant.
In step S2, the melt is cooled to 130 ℃ and kept warm, and stirred for 20min at the rotating speed of 250 r/min.
The aperture of the spinning die in step S3 was 0.4 mm.
In step S4, the oven temperature is 40 ℃ and the speed of the fiber web passing through the oven is 15 m/min.
The preparation method of the modified polyvinyl alcohol comprises the following steps: adding cellulose nanocrystal, carboxymethyl cellulose and polyvinyl alcohol into a reaction kettle, stirring at 120 ℃ for reaction for 0.8h, cooling to 80 ℃, adding neodecanoic acid glycidyl ester, continuing to stir for reaction for 0.4h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
The mass ratio of the cellulose nanocrystal to the carboxymethyl cellulose to the polyvinyl alcohol to the neodecanoic acid glycidyl ester to the aminoethyl piperazine to the triethanolamine is 1:0.8: 8: 0.2: 0.1:0.1.
The antioxidant is one or more of molybdenum dialkyl dithiocarbamate, tributyl phosphite and dialkyl diphenylamine mixed in any proportion.
Example 2
A breathable and soft nonwoven fabric, which is prepared by the following steps:
s1, preparing raw materials including polypropylene, polyester fibers, cellulose acetate butyrate, maleic acid resin, modified polyvinyl alcohol, saturated erucamide and an antioxidant;
s2, adding polypropylene, polyester fiber, cellulose acetate butyrate ester, maleic acid resin, modified polyvinyl alcohol and saturated erucic acid amide into a melting tank together, heating at high temperature until the materials are completely melted to obtain a melt, cooling the melt, adding an antioxidant, and stirring to obtain a mixture;
s3, sending the mixture out from the spinning die head through cold air, cooling and solidifying to form non-woven fabric fibers, and cross lapping the non-woven fabric fibers after carding and combing to obtain a fiber web;
and S4, drying at low temperature, sending the fiber web into an oven for drying, and putting the dried fiber web into an edge cutting device for edge cutting and rolling to obtain the breathable and soft non-woven fabric.
Step S1 includes the following raw materials by weight: 45 parts of polypropylene, 13 parts of polyester fiber, 14 parts of cellulose acetate butyrate, 11 parts of maleic acid resin, 13 parts of modified polyvinyl alcohol, 2.5 parts of saturated erucamide and 1.5 parts of antioxidant.
And step S2, cooling the melt to 140 ℃, preserving heat, and stirring at the rotating speed of 270r/min for 25 min.
The aperture of the spinning die in step S3 was 0.6 mm.
In step S4, the oven temperature was 45 ℃ and the speed of the web through the oven was 17 m/min.
The preparation method of the modified polyvinyl alcohol comprises the following steps: adding cellulose nanocrystal, carboxymethyl cellulose and polyvinyl alcohol into a reaction kettle, stirring at 120 ℃ for reaction for 0.9h, cooling to 82 ℃, adding neodecanoic acid glycidyl ester, continuing to stir for reaction for 0.5h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
The mass ratio of the cellulose nanocrystal to the carboxymethyl cellulose to the polyvinyl alcohol to the neodecanoic acid glycidyl ester to the aminoethyl piperazine to the triethanolamine is 1.3:1: 9: 0.4: 0.15:0.2.
The antioxidant is one or more of molybdenum dialkyl dithiocarbamate, tributyl phosphite and dialkyl diphenylamine mixed in any proportion.
Example 3
A breathable and soft nonwoven fabric, which is prepared by the following steps:
s1, preparing raw materials including polypropylene, polyester fibers, cellulose acetate butyrate, maleic acid resin, modified polyvinyl alcohol, saturated erucamide and an antioxidant;
s2, adding polypropylene, polyester fiber, cellulose acetate butyrate ester, maleic acid resin, modified polyvinyl alcohol and saturated erucic acid amide into a melting tank together, heating at high temperature until the materials are completely melted to obtain a melt, cooling the melt, adding an antioxidant, and stirring to obtain a mixture;
s3, sending the mixture out from the spinning die head through cold air, cooling and solidifying to form non-woven fabric fibers, and cross lapping the non-woven fabric fibers after carding and combing to obtain a fiber web;
and S4, drying at low temperature, sending the fiber web into an oven for drying, and putting the dried fiber web into an edge cutting device for edge cutting and rolling to obtain the breathable and soft non-woven fabric.
Step S1 includes the following raw materials by weight: 50 parts of polypropylene, 15 parts of polyester fiber, 16 parts of cellulose acetate butyrate, 12 parts of maleic acid resin, 15 parts of modified polyvinyl alcohol, 3 parts of saturated erucamide and 2 parts of antioxidant.
In step S2, the melt is cooled to 150 ℃ and kept warm, and stirred for 30min at the rotating speed of 300 r/min.
The aperture of the spinning die in step S3 was 0.8 mm.
In the step S4, the oven temperature is 40-50 ℃, and the speed of the fiber web passing through the oven is 20 m/min.
The preparation method of the modified polyvinyl alcohol comprises the following steps: adding cellulose nanocrystal, carboxymethyl cellulose and polyvinyl alcohol into a reaction kettle, stirring and reacting for 1h at 120 ℃, cooling to 85 ℃, adding neodecanoic acid glycidyl ester, continuing to stir and react for 0.6h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
The mass ratio of the cellulose nanocrystal to the carboxymethyl cellulose to the polyvinyl alcohol to the neodecanoic acid glycidyl ester to the aminoethyl piperazine to the triethanolamine is 1.6:1.2: 10: 0.5: 0.2:0.3.
The antioxidant is one or more of molybdenum dialkyl dithiocarbamate, tributyl phosphite and dialkyl diphenylamine mixed in any proportion.
Referring to fig. 1-7, the edge cutting device in the above embodiment includes a movable cutting mechanism 1 and a clamping and winding mechanism 2, the movable cutting mechanism 1 is used for cutting edges of the fiber web, and the clamping and winding mechanism 2 is used for clamping and winding the fiber web, so as to facilitate edge cutting;
the movable cutting mechanism 1 comprises two first support plates 101 which are symmetrically distributed, first sliding rods 102 which are symmetrically distributed are fixed between two ends of the two first support plates 101, first sliding plates 103 which are symmetrically distributed are sleeved on the outer surfaces of the two first sliding rods 102, the first sliding plates 103 are in sliding connection with the first sliding rods 102, second sliding rods 104 which are symmetrically distributed are fixed between the two first sliding plates 103, second sliding plates 105 are sleeved on the outer surfaces of the two second sliding rods 104, and the second sliding plates 105 are in sliding connection with the second sliding rods 104;
first telescopic cylinders 106 which are symmetrically distributed are fixed at two ends of the top of one of the first support plates 101, output ends of the two first telescopic cylinders 106 are respectively fixed with side surfaces of the two first sliding plates 103, a second telescopic cylinder 107 is fixed at the top of one of the first sliding plates 103, an output end of the second telescopic cylinder 107 is fixed with one side surface of the second sliding plate 105, a third telescopic cylinder 108 is fixed at the bottom of the second sliding plate 105, a fixed plate 109 is fixed at an output end of the third telescopic cylinder 108, a cutting motor 110 is fixed at the bottom of the fixed plate 109, and a cutting knife 111 is fixed at an output end of the cutting motor 110; promote first sliding plate 103 through first telescopic cylinder 106 and slide on first slide bar 102, realize the horizontal lateral shifting of cutting knife 111, promote second sliding plate 105 through second telescopic cylinder 107 and slide on second slide bar 104, realize the horizontal vertical migration of cutting knife 111, promote fixed plate 109 downstream through third telescopic cylinder 108, realize the ascending removal of cutting knife 111 vertical side, drive cutting knife 111 through cutting motor 110 and rotate and carry out the operation of cutting edge to the fibre web, through setting up removal cutting mechanism 1, make cutting knife 111 can realize arbitrary removal in level and vertical direction homoenergetic, thereby remove the optional position on the fibre web and carry out the operation of cutting edge, the accommodation of device has been improved, the practicality is stronger.
The clamping and winding mechanism 2 comprises a workbench 201, a clamping table 202 is fixed to the top of the workbench 201, placing grooves 203 are formed in two sides of the clamping table 202 in a penetrating mode, a fiber net is placed inside the placing grooves 203, cutting grooves 204 are formed in the top of the clamping table 202, the cutting grooves 204 are arranged to facilitate the cutting of the fiber net by a cutter 111, the bottom of each cutting groove 204 is communicated with the inside of the placing groove 203, symmetrically-distributed clamping plates 205 are arranged at the front end and the rear end of the inside of the placing groove 203, two symmetrically-distributed clamping springs 206 are fixed to the top of each clamping plate 205, the stability of each clamping plate 205 is improved by the corresponding clamping spring 206, the top ends of the clamping springs 206 are fixed to the top end of the inside of the placing groove 203, symmetrically-distributed fourth telescopic cylinders 207 are fixed to the front end and the rear end of the top of the workbench 201, and the output ends of the fourth telescopic cylinders 207 penetrate through the placing groove 203 and are fixed to the top of the clamping plates 205;
a winding chamber 208 is arranged on one side of the clamping table 202, the bottom of the winding chamber 208 is fixed with the top of the workbench 201, a winding groove 209 is formed in one side of the winding chamber 208 close to the clamping table 202, a winding motor 210 is fixed on one side wall of the outer portion of the winding chamber 208, a winding rod 211 is fixed on the output end of the winding motor 210, the winding rod 211 penetrates through the winding chamber 208 and is rotatably connected with the inner wall of the winding chamber 208, and a winding roller 212 is fixed on the outer surface of the winding rod 211; by arranging the clamping and winding mechanism 2, the fourth telescopic cylinder 207 pushes the clamping plate 205 to clamp the fiber web in the placing groove 203, so that the trimming operation is facilitated, and poor trimming precision caused by displacement of the fiber web in the trimming process is avoided; the winding motor 210 drives the winding roller 212 on the winding rod 211 to wind the trimmed fiber web, so that the fiber web is convenient to store, and the practicability of the device is improved.
The working principle is as follows:
when the fiber web clamping device is used, one end of a fiber web penetrates through one end of the placing groove 203 and is positioned in the cutting groove 204, the fourth telescopic cylinder 207 is started, and the output end of the fourth telescopic cylinder is driven to push the clamping plate 205 to clamp the two ends of the fiber web;
the third telescopic cylinder 108 is started to drive the output end of the third telescopic cylinder to push the cutting motor 110 on the fixed plate 109 to move to the position above the fiber web, and the second telescopic cylinder 107 is started to drive the output end of the second telescopic cylinder to push the second sliding plate 105 to slide on the second sliding rod 104 and move to the position on the fiber web needing edge cutting;
the cutting motor 110 is started to drive the output end of the cutting motor to drive the cutting knife 111 to rotate, meanwhile, the first telescopic air cylinder 106 is started to drive the output end of the first telescopic air cylinder to push the first sliding plate 103 to slide on the first sliding rod 102, feeding motion is achieved, trimming operation is conducted on the fiber web, one end of the cut fiber web penetrates through the winding groove 209 and is fixed with the outer surface of the winding roller 212, and the winding motor 210 is started to drive the winding roller 212 on the winding rod 211 to rotate to wind the fiber web.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A preparation method of the breathable and soft non-woven fabric is characterized by comprising the following steps:
s1, preparing raw materials including polypropylene, polyester fibers, cellulose acetate butyrate, maleic acid resin, modified polyvinyl alcohol, saturated erucamide and an antioxidant;
s2, adding polypropylene, polyester fiber, cellulose acetate butyrate ester, maleic acid resin, modified polyvinyl alcohol and saturated erucic acid amide into a melting tank together, heating until the materials are completely melted to obtain a melt, cooling the melt, adding an antioxidant, and stirring to obtain a mixture;
s3, sending the mixture out from the spinning die head through cold air, cooling and solidifying to form non-woven fabric fibers, and cross lapping the non-woven fabric fibers after carding and combing to obtain a fiber web;
and S4, drying at low temperature, sending the fiber web into an oven for drying, and putting the dried fiber web into an edge cutting device for edge cutting and rolling to obtain the breathable and soft non-woven fabric.
2. The method for preparing the breathable and soft non-woven fabric according to claim 1, wherein the step S1 comprises the following raw materials in parts by weight: 40-50 parts of polypropylene, 12-15 parts of polyester fiber, 13-16 parts of cellulose acetate butyrate, 10-12 parts of maleic acid resin, 12-15 parts of modified polyvinyl alcohol, 2-3 parts of saturated erucamide and 1-2 parts of antioxidant.
3. The method as claimed in claim 1, wherein the melt is cooled to 130-150 ℃ and then stirred at a rotation speed of 300r/min for 20-30min in step S2.
4. The method of claim 1, wherein the spinning die has a hole size of 0.4-0.8mm in step S3.
5. The method of claim 1, wherein the oven temperature in step S4 is 40-50 ℃ and the speed of the web passing through the oven is 15-20 m/min.
6. The method for preparing the breathable and soft non-woven fabric according to claim 1, wherein the method for preparing the modified polyvinyl alcohol comprises the following steps: adding cellulose nanocrystal, carboxymethyl cellulose and polyvinyl alcohol into a reaction kettle, stirring and reacting for 0.8-1h at 120 ℃, cooling to 80-85 ℃, adding neodecanoic acid glycidyl ester, continuing to stir and react for 0.4-0.6h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
7. The method for preparing the breathable and soft non-woven fabric according to claim 6, wherein the mass ratio of the cellulose nanocrystal, the carboxymethyl cellulose, the polyvinyl alcohol, the glycidyl neodecanoate, the aminoethyl piperazine and the triethanolamine is 1-1.6:0.8-1.2: 8-10: 0.2-0.5: 0.1-0.2:0.1-0.3.
8. The method for preparing the breathable and soft non-woven fabric according to claim 1, wherein the antioxidant is one or more of molybdenum dialkyl dithiocarbamate, tributyl phosphite and dialkyl diphenylamine which are mixed in any proportion.
9. The method for preparing the breathable and soft non-woven fabric according to claim 1, wherein the edge cutting device works as follows:
firstly, one end of a fiber web penetrates through one end of a placing groove (203) and is positioned in a cutting groove (204), a fourth telescopic cylinder (207) is started, and the output end of the fourth telescopic cylinder is driven to push a clamping plate (205) to clamp the two ends of the fiber web;
secondly, starting a third telescopic cylinder (108) to drive a cutting motor (110) to move to the position above the fiber web, starting a second telescopic cylinder (107) to drive a second sliding plate (105) to slide on a second sliding rod (104), and moving to the position, needing edge cutting, on the fiber web;
and thirdly, starting a cutting motor (110) to drive a cutting knife (111) to rotate, simultaneously starting a first telescopic cylinder (106) to drive a first sliding plate (103) to slide on a first sliding rod (102), realizing feeding motion, performing edge cutting operation on the fiber web, enabling one end of the cut fiber web to penetrate through a winding groove (209) and be fixed with the outer surface of a winding roller (212), and starting a winding motor (210) to drive the winding roller (212) on a winding rod (211) to rotate to wind the fiber web.
10. An air-permeable, soft nonwoven fabric produced by the method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110997715.9A CN113818149A (en) | 2021-08-27 | 2021-08-27 | Breathable soft non-woven fabric and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110997715.9A CN113818149A (en) | 2021-08-27 | 2021-08-27 | Breathable soft non-woven fabric and preparation method thereof |
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| CN113818149A true CN113818149A (en) | 2021-12-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438686A (en) * | 2022-02-22 | 2022-05-06 | 时兴纺整(苏州)有限公司 | Efficient energy-saving continuous processing equipment and processing technology for oxford fabric |
-
2021
- 2021-08-27 CN CN202110997715.9A patent/CN113818149A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438686A (en) * | 2022-02-22 | 2022-05-06 | 时兴纺整(苏州)有限公司 | Efficient energy-saving continuous processing equipment and processing technology for oxford fabric |
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